Chinese teacher in Mumbai lesson
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The Indians learning Chinese to boost trade

20 October 2013 Last updated at 04:00 BST

The Indian prime minister visits China this week.

The two countries have promised to boost trade to $100bn in the next few years - up 50% from current levels - and China is keen on signing a regional trading arrangement to boost it further.

However, Manmohan Singh faces a tricky problem - most of the trade seems to be one-way.

Neil Heathcote reports.